o-Nitroaniline Derivatives - 13 reactions of N-(o-nitroaryl)sarcosine esters with bases
作者:Pamela A. Collins、Michael D. McFarlane、Raymond K. Mackie、David M. Smith
DOI:10.1016/s0040-4020(01)80466-x
日期:1992.1
The title reactions give 1-hydroxy-4-methylquinoxaline-2,3-diones (4) together with a variety of mono- and bi-cyclic by-products All of these may result from a common intermediate, viz. a 1-hydroxy-4-methyl-3,4-dihydro-1H-2,1,4-benzoxadiazine-3-carboxylate ester (18).